German Submarine U-853 is famously known as the final German U-Boat to be sunk by the Allied forces following the end of WWII. Only days before Germany surrendered the war, U-853 targeted and torpedoed the collier Black Point during the Battle of Point Judith. American warships were quickly deployed and sank U-853 just 7 nautical miles east of Block Island, RI. The entire crew was lost. Today, the U-853 is a preserved war grave.

The U-853 is now a very popular New England tech diving site. Resting at 121 feet, the wreck is a popular deep dive for experienced scuba divers. U-853 now rests upright with her periscope rising to a depth of 100 feet (30m). Most of the 55 crew member bodies still remain within the hull, which is accessible through two main blast holes: one just past the conning tower leading into the radio room, and another in the starboard side of the engine room.